可九十度“水中倒立”的船只
如果朋友告诉你这是一艘运行正常的勘测船，你可能会以为这是愚人节玩笑！毕竟这艘船是在水中“倒立”，看起来它快要沉没了。可事实上，它是美国一艘长约108米还能90度翻转的勘测船，从1962年投入使用起，已经工作五十多个年头了。
船中配有几个压载水舱，往里面加水，即可改变船身重心，让船90度旋转。当船立起来，研究人员就可以在上面做各种实验。勘测船不仅可以用来测量水温，还可以用来研究水声学、海洋学、气象学和进行对海洋哺乳动物的观测。
据环球网
说的不错！
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